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Thoroughbred Diesel has been your online performance headquarters since 2002. We know how to get the most performance out of your pickup truck and offer all of today's most popular diesel performance products.

The 6.5 injector is referred to as a pintle style injector, which is commonly used in an engine with pre-combustion cylinders. The injector has a needle plunger that plugs off the spray hole when it is closed. Once the pump allows fluid flow to the particular cylinder, the high fuel pressure forces the pintle away from the hole seat and the fuel stream is injected through the pre-combustion chamber into the combustion chamber. This type of engine often runs dirtier than a direct injected engine and the injectors require replacing between 80-100 thousand miles.